PHP Manual: exp


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exp

(PHP 3, PHP 4, PHP 5)

exp -- Calculates the exponent of e

Description

float exp ( float arg )

Returns e raised to the power of arg.

Note: 'e' is the base of the natural system of logarithms, or approximately 2.718282.

Parameters

arg

The argument to process

Return Values

'e' raised to the power of arg

Examples

Example 1. exp() example

<?php
echo exp(12) . "\n";
echo
exp(5.7);
?>

The above example will output:

1.6275E+005
298.87

See Also

log()
pow()